3 problems

Let $k\in\mathbb{N}$, let $G\in\mathcal{S}\big((\mathbb{R}^{1,1})^k\big)$, and let $\alpha_1,\dots,\alpha_k$ be labels of solutions to the system a)–d). For each…

Let $Z$ be the non-perturbative field-strength (or wave-function) renormalization constant of an interacting field. The canonical equal-time commutation relations and the Källén–Le…

The observable algebra and its Wightman-function framework are assumed to describe the physical theory in the Coulomb gauge, with the Wightman functions satisfying relativistic cov…